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  "path": "/extension/extension-drainage",
  "publishedAt": "2026-04-09T06:00:00.000Z",
  "site": "https://www.homebuilding.co.uk",
  "tags": [
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  "textContent": "The low-down on how to get your extension's drainage right to avoid any expensive and time-consuming mistakes",
  "title": "Why your extension's drainage needs planning before a build — and the problems that could happen if you get it wrong"
}